This story appears in the May 2018 issue of National Geographic magazine ... The ever shifting earth has softened the crater rim, which today is only visible using advanced satellite sensing.

When interplanetary debris falls into Earth's atmosphere, it burns up and creates dazzling meteor showers, like the Perseid meteors (seen here above Yosemite National Park). When you wish upon a ...

Even small asteroids can do a lot of damage—and new research shows the James Webb Space Telescope is adept at spotting the tiniest of space rocks.

Precambrian time covers the vast bulk of the Earth's history ... Photograph by Joel Sartore, National Geographic Photo Ark The earliest multicelled animals that survived the Precambrian fall ...

3 min read The Hubble Space Telescope was designed to free astronomers of a limitation that has plagued them since the days of Galileo—Earth's atmosphere. Shifting air pockets in the atmosphere ...